The Eisenhower Years was a 13-part radio documentary that was produced by Kansas State University in 1969 & 1970.
According to Kansas Cooperative Extension Service History, 1914-1989
, "It was aired over the K-State Radio Network, the National Educational Radio Network (the fore-runner of National Public Radio), and the Voice of America
I've tagged these files with "1970" & "VOA." Any typo or error is mine. :)